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High strength bolts for joins of space grid structure |
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| Detailed Product Description |
| Features: |
1)Standards: GB/T16939-97
2)Class:10.9s
3)Surface: black, phosphate, hot dip galvanized
4) Material: 20MnTiB
5)High strength bolts for joins of space grid structure are widely used in the joins of space grid structure.
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